NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 414
ONVOY, LLC - WI 3
BANDWIDTH.COM CLEC, LLC - WI 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-03-11 414-377-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2019-03-11 414-377-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2019-03-08 414-367-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN3 WI
2019-03-06 414-375-6XXX 6000–6999Assigned TELNYX LLC 073H MILWAUKZN4 WI
2019-02-26 414-662-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2019-02-26 414-662-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2019-02-26 414-662-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2019-02-19 414-485-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2019-02-19 414-485-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2019-02-11 414-235-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2019-02-11 414-246-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2019-02-11 414-375-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2019-02-11 414-377-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2019-02-11 414-409-9XXX 9000–9999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN3 WI
2019-02-11 414-422-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2019-02-11 414-928-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2019-02-11 414-928-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2019-02-11 414-928-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2019-01-08 414-662-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2019-01-04 414-775-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2019-01-04 414-775-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2019-01-04 414-775-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2019-01-04 414-775-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2018-12-26 414-928-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN4 WI
2018-12-03 414-775-5XXX 5000–5999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2018-10-03 414-409-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN3 WI
2018-10-03 414-775-0XXX 0000–0999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN5 WI
2018-10-03 414-928-8XXX 8000–8999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN4 WI
2018-09-26 414-246-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2018-09-20 414-488-6XXX 6000–6999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN1 WI
2018-09-19 414-485-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2018-09-19 414-485-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2018-09-19 414-928-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2018-09-04 414-662-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN1 WI
2018-08-20 414-246-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2018-07-25 414-310-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2018-07-25 414-485-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2018-07-10 414-998-2XXX 2000–2999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-07-10 414-998-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-07-10 414-998-4XXX 4000–4999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-07-10 414-998-5XXX 5000–5999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-07-10 414-998-6XXX 6000–6999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-07-10 414-998-7XXX 7000–7999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2018-06-15 414-246-5XXX 5000–5999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MILWAUKZN3 WI
2018-06-12 414-310-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2018-06-08 414-485-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2018-05-09 414-775-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2018-05-09 414-928-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN4 WI
2018-04-17 414-246-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2018-04-17 414-485-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.